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Media Type
1,182
texts
109
audio
76
movies
11
images
1
data
1
web
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Topics & Subjects
608
COSMOLOGY
584
NASA Technical Reports Server (NTRS)
434
Cosmology
205
cosmology
159
UNIVERSE
122
ASTROPHYSICS
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Collection
584
NASA Network Resource and Training Site
269
American Libraries
91
Community Texts
77
NASA Technical Documents
75
Community Audio
57
Community Video
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Creator
584
nasa technical reports server (ntrs)
38
humboldt, alexander von, 1769-1859
22
luis gonzalez-mestres
16
argyll, george douglas campbell, duke of, 1823-1900
14
duhem, pierre maurice marie, 1861-1916
11
charles lee and frank ling
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Language
1,050
English
79
German
51
French
11
Latin
4
Italian
3
Russian
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